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Si9167 - 600-mA Synchronous Buck Converter

General Description

The Si9167 provides a fully integrated synchronous buck converter solution for the latest 2-cell Lithium Ion battery cellular phones.

Capable of delivering up to 600 mA of output current, the Si9167 provides ample power for various Baseband circuits as well as for some PAs.

Key Features

  • Voltage Mode Control.
  • 5 V to 10 V Input Voltage Range.
  • Fully Integrated 600 mA MOSFET Switches.
  • Synchronous Rectifier Switch.
  • Synchronizable, Constant-Frequency PWM Mode (up to 2 MHz).
  • Programmable PWM/PSM Control - Up to 600 mA Output Current in PWM with 950 µA Quiescent Current - Up to 150 mA Output Current in PSM with 200 µA Quiescent Current.
  • Low Dropout Operation at Low VIN - VOUT.
  • Integrated UVLO, POR and OTP.

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Datasheet Details

Part number Si9167
Manufacturer Vishay
File Size 201.47 KB
Description 600-mA Synchronous Buck Converter
Datasheet download datasheet Si9167 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product is End of Life 3/2014 Si9167 Vishay Siliconix 600-mA Synchronous Buck Converter for 2-Cell Li+ Cellular Phones DESCRIPTION The Si9167 provides a fully integrated synchronous buck converter solution for the latest 2-cell Lithium Ion battery cellular phones. Capable of delivering up to 600 mA of output current, the Si9167 provides ample power for various Baseband circuits as well as for some PAs. The Si9167 combines the 2 MHz switching frequency with fully integrated high-frequency MOSFETs to deliver the smallest and most efficient converter available today. The 2 MHz switching frequency reduces the inductor height to a new level of less than 2 mm and minimizes the output capacitance requirement to less than 10 µF, with only 10 mV peakto-peak output ripple.